Most of us know Zach best for his portrayal of the awkward and bearded Alan in The Hangover,but did you know that he has his own online series? What about his gangster-turned-country rap video spoof? Hilarious stuff, people. We want to get your LOLs ready for Zach's SNL gig this weekend with his 5 funniest moments. Gather round, Wolf Pack, and get ready to laugh…

Between Two Ferns, Oscar Edition—On Zach's Funny or Die talk show series, Between Two Ferns, Zach sits down with some of Hollywood's most respected actors and actresses. Zach hosted a special for The Oscars where he interviewed Oscar nominees like Bradley Cooper of Silver Lining Cookbook. Yes, that's the movie…according to Zach.

Zach in The Hangover—Hands down, our favorite Zach moment of all time. We can't think of anybody else who could have pulled off a satchel and take a hit from Mike Tyson better than him. Get in here, crazy, and check out this hilarious clip.

Do you have a favorite funny Zach Galifianakis moment? Will you be watching him host SNL tomorrow night? Are you excited to see The Hangover III? Tweet us @OKMagazine!